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Modelling of burnt pine heartwood acid-catalysed liquefaction

2023-01-06Journal article Open access
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dc.contributor.authorOzkan, Sila
dc.contributor.authorGonçalves, Diogo
dc.contributor.authorPaulo, Ivo
dc.contributor.authorQueirós, Carla S. G. P.
dc.contributor.authorCarvalho, Ana
dc.contributor.authorPuna, Jaime
dc.contributor.authorGomes, João
dc.contributor.authorBordado, João
dc.contributor.authorSantos, Rui Galhano dos
dc.date.accessioned2023-05-23T09:41:57Z
dc.date.available2023-05-23T09:41:57Z
dc.date.issued2023-01-06
dc.description.abstractThis study focused on bio-oil production by thermochemical liquefaction. For the reaction, the burnt pine heartwood was used as feedstock material, 2-Ethylhexanol (2-EHEX) was used as a solvent, p-Toluenesulfonic acid (pTSA) was used as a catalyst, and the solvent for washing was acetone. The procedure consisted of a moderate-acid-catalysed liquefaction process, and it was applied at three different temperatures, 120, 140, and 160 degrees C, and at 30, 105, and 180 min periods with 1%, 5.5%, and 10% (m/m) catalyst concentration of overall mass. Optimal results showed a bio-oil yield of 86.03% and a higher heating value (HHV) of 36.41 MJ/kg, which was 1.96 times more than the HHV of the burnt pine heartwood. A reaction surface methodology (Box-Behnken design) was performed for the liquefaction reaction optimisation. Reaction temperature, reaction time and catalyst concentration were chosen as independent variables. The obtained model showed good results with a high adjusted R-squared (0.988) and an excellent p-value (less than 0.001). The liquefied products were characterised by Fourier Transformed Infrared (FTIR) and thermogravimetric analysis (TGA), and also Scanning electron microscopy (SEM) was carried out to validate the impact of the morphological changes on the surface area of the solid samples. This study shows an excellent opportunity to validate a method to upcycle woody wastes via acid-catalysed liquefaction. In particular, this approach is of great interest to produce bio-oil with a good yield, recovering part of the values lost during wildfires.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationOZKAN, Sila; [et al] – Modelling of burnt pine heartwood acid-catalysed liquefaction. Resources. eISSN 2079-9276. Vol. 12, N.º 1 (2023), pp. 1-17.pt_PT
dc.identifier.doi10.3390/resources12010011pt_PT
dc.identifier.eissn2079-9276
dc.identifier.urihttp://hdl.handle.net/10400.21/16113
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationFCT-UIDB/04028/2020 - CERENA strategic projectpt_PT
dc.relationCentro de Química Estrutural
dc.relationCentro de Química Estrutural
dc.relation.publisherversionhttps://www.mdpi.com/2079-9276/12/1/11pt_PT
dc.subjectLiquefactionpt_PT
dc.subjectBio-oilpt_PT
dc.subjectSolventpt_PT
dc.subjectBiomasspt_PT
dc.subjectCatalystpt_PT
dc.subjectForest wildfirespt_PT
dc.subjectBurnt pine heartwoodpt_PT
dc.subjectMaritime pinept_PT
dc.subjectBiofuelpt_PT
dc.titleModelling of burnt pine heartwood acid-catalysed liquefactionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentro de Química Estrutural
oaire.awardTitleCentro de Química Estrutural
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00100%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00100%2F2020/PT
oaire.citation.endPage17pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleResourcespt_PT
oaire.citation.volume12pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameOzkan
person.familyNameAzevedo Gonçalves
person.familyNamePaulo
person.familyNameCarvalho
person.familyNamePuna
person.familyNameGomes
person.familyNameBordado
person.familyNameGalhano dos Santos
person.givenNameSila
person.givenNameDiogo Filipe
person.givenNameIvo
person.givenNameAna
person.givenNameJaime
person.givenNameJoão
person.givenNameJoão
person.givenNameRui
person.identifierhttps://scholar.google.com/citations?user=P0uUo8gAAAAJ&hl=pt-PT
person.identifier790253
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person.identifierJ-3270-2014
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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